java需要关注的知识点---并发之定义任务

1：定义任务：

public class LiftOff implements Runnable{
	private  int count = 10;
	private static int taskCount = 0;
	private final int id = taskCount++;
	public void run() {
		while(count-- > 0) {
			System.out.println(status());
			Thread.yield();
		}
	}
	public String status() {
		return "#" + id + "(" + (count >0 ? count:"Liftoff")+ "),";
	}
	public static void main(String[] args) {
		LiftOff lift = new LiftOff();
		new Thread(lift).start();
	}
}

public class BasicThreads {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Thread t= new Thread(new LiftOff());
		t.start();
		System.out.println("Waiting for LiftOff");
	}

}


public class MoreBasicThread {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		for (int i = 0; i< 5; i++) {
			new Thread(new LiftOff()).start();
		}
		System.out.println("Waiting for liftOff");
	}

}